Lexicographic priority
A strict priority order on a criteria vector, not a finite exchange rate.
Role. Target. Graph node lex.
Fixed exchange rates do not represent a lexicographic priority: a large enough gain on a lower coordinate can outweigh any fixed rate.
— Frames relations note
Lex specializes the vector problem by imposing priority rather than by projecting. It is still a target on task/stakeholder coordinates, not a correction certificate.